Swift monitoring of the central X-ray source in RCW103

P. Esposito, R. Turolla, A. De Luca, G. L. Israel, A. Possenti, D. N. Burrows

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The X-ray source 1E161348-5055 lies at the centre of the 2-kyr-old supernova remnant RCW103. Owing to its 24-ks modulation, orders-of-magnitude flux variability over a few months/years and lack of an obvious optical counterpart, 1E161348-5055 defies assignment to any known class of X-ray sources. Starting from 2006 April, Swift observed 1E161348-5055 with its X-Ray Telescope for ∼2ks approximately once per month. During the five years covered, the source has remained in a quiescent state, with an average observed flux of ∼1.7 × 10-12ergcm-2s-1 (1-10keV), ∼20 times lower than the historical maximum attained in its 1999-2000 outburst. The long time-span of the Swift data allows us to obtain an accurate measure of the period of 1E161348-5055 [P= 24030.42(2)s] and to derive the first upper limit on its period derivative (ss-1 at 3σ).

Original languageEnglish (US)
Pages (from-to)170-175
Number of pages6
JournalMonthly Notices of the Royal Astronomical Society
Volume418
Issue number1
DOIs
StatePublished - Nov 1 2011

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monitoring
x rays
supernova remnants
outburst
telescopes
modulation

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Esposito, P. ; Turolla, R. ; De Luca, A. ; Israel, G. L. ; Possenti, A. ; Burrows, D. N. / Swift monitoring of the central X-ray source in RCW103. In: Monthly Notices of the Royal Astronomical Society. 2011 ; Vol. 418, No. 1. pp. 170-175.
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Swift monitoring of the central X-ray source in RCW103. / Esposito, P.; Turolla, R.; De Luca, A.; Israel, G. L.; Possenti, A.; Burrows, D. N.

In: Monthly Notices of the Royal Astronomical Society, Vol. 418, No. 1, 01.11.2011, p. 170-175.

Research output: Contribution to journalArticle

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